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dc.contributor.authorSangodkar, N.
dc.contributor.authorGonsalves, M.J.B.D.
dc.contributor.authorShanbhag, Y.
dc.contributor.authorSreepada, R.A.
dc.contributor.authorNazareth, D.
dc.date.accessioned2020-12-31
dc.date.accessioned2021-02-09T10:13:18Z
dc.date.available2020-05-27
dc.date.available2021-02-09T10:13:18Z
dc.date.issued2020
dc.identifier.citationEnvironmental Monitoring and Assessment, vol.192(6); 2020; Article no: 397
dc.identifier.issn1573-2959
dc.identifier.otherhttps://doi.org/10.1007/s10661-020-08368-1
dc.identifier.urihttps://doi.org/10.1007/s10661-020-08368-1
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8499
dc.descriptionIF2019 - 1.903
dc.description.abstractThis paper describes the prevalence of indicator and pathogenic bacterial groups in water and sediments in OSZ-offshore, ISZ-inshore, IEZ-inner estuary, and UEZ-upper estuary along the river Chapora, central west coast of India, which is influenced by anthropogenic inputs. The abundance of indicator bacterial groups such as total coliforms and Escherichia coli-like organisms in water ranged from non-detectable (ND) to 103 colony-forming units (CFU)/mL. In contrast, their abundance in the sediments was six orders magnitude higher than water (ND to 109 CFU/g). The abundance of potential pathogenic bacteria in water and sediment samples ranged from ND to 103 CFU/mL and from ND to 109 CFU/g respectively, with Shigella-like organisms (SHLO) being the most abundant. In the surface waters, SHLO and Pseudomonas aeruginosa-like organisms (PALO) and in bottom waters, Vibrio parahaemolyticus-like organism and PALO increased progressively from OSZ to UEZ. In contrast, Proteus/Klebsiella-like organisms (PKLO) showed a reverse trend. Amongst all four zones, IEZ was the most contaminated in terms of the higher abundance of indicator and potential pathogenic bacterial populations as corroborated by significantly lower water quality index value. Principal component analysis performed using physico-chemical variables and bacterial groups to reduce data set variability revealed that a different set of parameters contributed differently to the total variation in each zone. Considering the eco-sensitivity of the river Chapora, the results of the present study call for precautionary measures to minimize the degree of anthropogenic inputs.
dc.languageen
dc.publisherSpringer
dc.relation.ispartofEnviron Monit Assess
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titlePrevalence of indicator and potential pathogenic bacterial groups in the Chapora bay-estuarine system, Goa, central west coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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